package com.lpf.facade;

// 子系统 - 投影仪
class Projector {
    public void on() {
        System.out.println("Projector is on");
    }

    public void wideScreenMode() {
        System.out.println("Projector in widescreen mode (16x9 aspect ratio)");
    }

    public void off() {
        System.out.println("Projector is off");
    }
}
